/**
 * WireIt.util.Anim is a wrapper class for YAHOO.util.Anim, to redraw the wires associated with the given terminals while running the animation.
 * @class Anim
 * @namespace WireIt.util
 * @extends YAHOO.util.Anim
 * @constructor
 * @param {Array} terminals List of WireIt.Terminal objects associated within the animated element
 * @params {String} id Parameter of YAHOO.util.Anim
 * @params {String} sGroup Parameter of YAHOO.util.Anim
 * @params {Object} config Parameter of YAHOO.util.Anim
 */
WireIt.util.Anim = function(terminals, el, attributes, duration, method) {
	if (!terminals) {
		throw new Error("WireIt.util.Anim needs at least terminals and id");
	}

	/**
	 * List of the contained terminals
	 * @property _WireItTerminals
	 * @type {Array}
	 */
	this._WireItTerminals = terminals;

	WireIt.util.Anim.superclass.constructor.call(this, el, attributes, duration, method);

	// Subscribe the onTween event to move the wires
	this.onTween.subscribe(this.moveWireItWires, this, true);
};

YAHOO.extend(WireIt.util.Anim, YAHOO.util.Anim, {

	/**
	 * Listen YAHOO.util.Anim.onTween events to redraw the wires
	 * @method moveWireItWires
	 */
	moveWireItWires: function(e) {
		// Make sure terminalList is an array
		var terminalList = YAHOO.lang.isArray(this._WireItTerminals) ? this._WireItTerminals : (this._WireItTerminals.isWireItTerminal ? [this._WireItTerminals] : []);
		// Redraw all the wires
		for (var i = 0; i < terminalList.length; i++) {
			if (terminalList[i].wires) {
				for (var k = 0; k < terminalList[i].wires.length; k++) {
					terminalList[i].wires[k].redraw();
				}
			}
		}
	},

	/**
	 * In case you change the terminals since you created the WireIt.util.Anim:
	 * @method setTerminals
	 * @param {Array} terminals
	 */
	setTerminals: function(terminals) {
		this._WireItTerminals = terminals;
	}

});